1、ABS Construction: The durable cave diving line circle marker is made with premium ABS material. Its erosion resistant design ensures long lasting use. 2、Bright Color for Easy Recognition: With its eye catching color, this diving line marker is easy to spot underwater, giving divers peace of mind. Its simple and convenient design makes it easy to use, especially when navigating through narrow passages or murky waters. 3、Compatible with Guide Lines: Pair this diving line circle marker with a guide line for added safety. It helps divers safely enter or exit caves and wrecks, ensuring a clear path to the surface. 4、Compact Size and Lightweight Design: This diving line circle marker is a compact and lightweight option for divers who prefer to travel light. It takes up very little space in your diving gear bag, and its simple design allows for easy storage and use. 5、Designed for Diving Enthusiasts: This diving line circle marker is ideal for technical diving and underwater exploration, including cave and wreck diving. No matter the conditions, this marker helps guide divers to their intended destination. Item Type: Diving Line Circle Marker Material: ABS Weight: Approx. 38g/1.3oz 4 x Diving Line Circle Marker